[Effect of acyclovir and steroid in a young immunocompetent male with herpes zoster myelitis].

Herpes zoster myelitis is a rare condition, usually seen in aged and immunocompromised patients. Due to atypical presen-tations it can be hard to diagnose. Intraspinal lesions on magnetic resonance imaging (MRI) support the diagnosis. We present a 39-year-old otherwise healthy male with symptoms of viral meningitis and rapidly progressing symptoms of myelitis. Lumbar puncture showed increased levels of monocytes and varicella zoster virus DNA. Despite a negative MRI, based on a few previous case reports and because of lack of progress on antiviral treatment, treatment with steroids was established early, recovering the patient dramatically. This supports that a combination of antiviral treatment and steroids may be a more efficient treatment of zoster myelitis and reminds us that the diagnosis cannot be excluded by a negative MRI.